R-454B AH 115/1/60

This air handler is designed for optimal performance, energy efficiency, and quiet operation. The cabinet construction includes 1.0 inch of foil-faced insulation, which significantly reduces sound levels for a quieter indoor environment. Its aluminum indoor coil is constructed with aluminum fins bonded to internally grooved aluminum tubing, offering enhanced corrosion resistance and long-term reliability. The versatile 4-way convertible design allows for upflow, downflow, horizontal left, and horizontal right configurations, making it ideal for installation in compact or challenging spaces. A rugged steel cabinet adds strength and durability, while field-installed auxiliary heater kits provide precise indoor heating and include UL and cUL-compliant circuit breakers for safe service disconnects. Engineered for energy savings, the unit achieves less than 2% cabinet air leakage at 1-inch H₂O, tested to ASHRAE Standard 193. It also supports future-ready refrigerants, aligning with the EPA’s 2025 low-GWP requirements—resulting in up to a 78% reduction in global warming potential compared to previous-generation refrigerants. Additionally, the integrated PlusOne Refrigerant Detection System features a patented A2L sensor and mitigation board in a compact, one-box design, simplifying wiring and commissioning while offering system protection by automatically pausing outdoor unit operation if excess refrigerant is detected. This advanced air handler combines sustainability, safety, and comfort to deliver dependable performance for years to come.